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1999
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Study designed by Drs. Ronald Victor and Helen Hobbs.
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2000–2002
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DHS–1 study visits for 6,101 Dallas County residents:
- Visit 1: In-home structured interview, blood pressure, weight (n=6,101)
- Visit 2: In-home interview, blood pressure, blood and urine collection (n=3,557)
- Visit 3: EKG, MRI, EBCT, DXA, anthropometrics, medications (n=3,072)
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2003–2006
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DHS transformed from a cross-sectional study to a longitudinal study:
- Participants contacted to administer health survey by phone.
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2007–2009
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DHS–2 Clinic Visits:
- Blood pressure, ankle-brachial index, blood collection, urine collection, anthropometrics, structured interview, EKG, acoustic cardiogram, medications, MRI, MDCT, DEXA, accelerometer placement, walk test, and cognitive screening test.
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2010- present
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Ongoing Follow-up:
- Participants contacted yearly for phone/email health survey.
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